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This study aims to assess whether the handling of concrete ball-and-stick molecular models promotes translation between diagrammatic representations and a concrete model (or<italic>vice versa</italic>) and the coordination of the different types of structural representations of a given molecular structure. Forty-one Algerian undergraduate students were requested to answer a pencil and paper questionnaire at the end of their training for a bachelor's degree in physical sciences to test their...
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The paper seeks to analyze the relationship between migrants' remittances and educational attendance in rural areas of southern Morocco. We perform a probit model to assess whether children who live in recipient households are more likely to attend school than their counterparts in other types of households. We find that the receipt of remittances has a significant positive effect on school attendance, especially for boys. The findings may be of interest to other developing countries and to...
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Dans cette these nous nous attelons a analyser comment les personnes handicapees physiques vivant a Libreville definissent, organisent et structurent leurs mobilisations et actions collectives. Une des formes et des significations les plus visibles de leurs revendications est le squat des bâtiments publics. Le squat se revele ainsi comme un mode de revendication du droit au logement et du droit a l’accessibilite. Par ailleurs, il nous apparu necessaire d’apprehender au prealables les «...
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By its geographical location within the arid and semi-arid area, Algeria is subject to adverse weather conditions. Algeria is highly sensitive to climate, especially in the highlands and the steppes which cover about 60% of North viable land. A climate change is inevitable and it will result in significant impacts, among other related to increased temperatures and rainfall, water resources scarcity and increased frequency of storms. Other impacts are studied: The loss of biodiversity and...
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Discovering the Woman in the Text:Early African American Print, Gender Studies, and the Twenty-First-Century Classroom Rian E. Bowie In 2011, I ran into a former student who had taken part in a course I taught in 2008 titled “Rediscovered: African American Women Writers and the Trajectory of a Tradition.” She had since graduated and was, at the time, a second-or third-year law student. The course she took with me pushed students to rediscover elements revealing the often under-examined, the...
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Historians have frequently suggested that droughts helped facilitate the African slave trade. By introducing a previously unused dataset on historical rainfall levels in Africa, I provide the first empirical answer to this hypothesis. I demonstrate how negative rainfall shocks and long-run shifts in the mean level of rainfall increased the number of slaves exported from a given region and can have persistent effects on the level of development today. Using a simple economic model of an...
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Climate-smart agriculture (CSA) aims at enhancing the capacity of farming systems to sustainably support food security in the context of climatic changes (CC). Questions arise about the profitability of alternative farming options and their cost-effectiveness in mitigating CC. A large dataset has been built through household surveys, key informant interviews and focus group discussions conducted in different agro ecological zones of Malawi. Farmers adopt a wide combination of sustainable...
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Through in-depth interviews with 21 parents and 12 children in lesbian/gayparented families, we explored the experiences of this unique family form in South African schools.Specifically, families reflected on their positive and negative experiences in the children's education and used these reflections to offer advice to teachers and administrators wishing better to support lesbian/ gay-parented families.The results of our study offer an understanding of the challenges and needs of this...
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Background: Sexual behaviour is the manner in which humans experience and express their sexuality.When it is risky, it can lead to untoward health consequences.Objective: The study was undertaking to assess the sexuality pattern of 276 students from a tertiary educational institution in Anambra state of south eastern Nigeria to determine the pattern of risk-behavior among them.Subjects/Methods: This is a cross-sectional questionnaire based study of undergraduates in a tertiary educational...
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The importance of health to national development and poverty reduction over the centuries, in that improving health status and increasing life expectancy contribute to long-term economic development. This article examined the state of health education and community mobilization in Nigeria’s health care delivery. The electronic search of relevant materials was carried out and those that met the inclusion criteria were used for the study. Health literacy is vital to power and support...
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The emerging consensus regarding high and rising levels of graduate unemployment in South Africa in recent years has primarily been based on a select number of studies, all of which have serious shortcomings ranging from deficient definitions of “graduates” to the use of outdated, incomplete, or unrepresentative data. Moreover, given the heterogeneity in the quality of higher education in South Africa, existing findings regarding aggregate graduate unemployment in the country, even if...
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This study uses a unique dataset to investigate university access, throughput, and dropout for the 2008 South African national matric cohort. The findings show that university access in South Africa is limited, even among learners who perform relatively well in matric. In addition, those who do gain access to university often take a long time to complete their studies, with many never completing at all. As a result, only a select minority of matric learners manage to obtain university...